Carbureter.



w, JAMES. 'C ARBURETER. APPLICATION FILED SEPT. 6. 191]- 'latentod Nov. 5, 1918.

UNITED srns PATENT FFICE.

WILLIAM JAMES, 033' BIRKENHEAD, ENGLAND.

oanrvnnrnn Application filed September 6, 1917. Serial No. 190,021.

To all whom it may concern:

Be it known that I, WILLIAM JAMES, a subject of the King of England, and residing at Birkenhead, in the county of Lancaster, England, have invented Improvements in Carbureters for Internal-Combos tion Engines and the like, of which the following is a specification. My invention relates to improvements 1n apparatus for atomizing a liquid fuel,such as oil, and intimately mixingthe same wlth air, for carbureting the air.

An impor'tant object of the invention 1s to provide apparatus of the above -mentioned character, which is highly eflicient in operation, simple in construction, strong and durable.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed parts throughout the same,

Figure 1 is a central vertical longitudinal section through a earbureter embodying my invention, parts being shown in elevation, and

Fig. 2 is a transverse section taken on line 2-2 of Fig. 1.

' In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 1' designates a float chamber receiving the liquid fuel, such as oil, and discharging the same through a port 2. The numeral 3 designates a main chamber, the lower end of which is equipped with a coupling 4. The port 2 discharges into the coupling 4, as shown. The main chamber 3 is provided upon one side with an air inlet 5.

Extending vertically into the main chamher 3 is an inner air supply tube 6, the lower end of which is secured to a coupling 7, screw-threaded into the lower end of the coupling 4. The inner air supply tube 6 is surrounded by an outer oil supply tube 8, the internal diameter of which is slightly greater than the external diameter of the tube 6, thereby providing an annular space 9.

The'upper end of the outer tube 8 carries an enlarged hollow head or nozzle 10, the upper end of which is closed, but preferably spherically curved. The lower end of the nozzle 10 is also spherically curved for receiving a deflector 11, the lower portion of whichis spherically curved, providing an outlet passage 12 as shown. The deflector 11 is slightly spaced above the inner tube 6,

to designate like in'place by webs 13, secured to the nozzle 10. The nozzle and is held thereto and 10 has apertures 14 formed therein and an ranged between the webs l3. e

The top of the main chamber 3 is pro vided with an upwardly extending neck 15, receiving a tubular coupling 16, adapted for connection with the cylinder and constituting the outlet of rranged within the .tubular a pivoted throttle valve 17 the carburcter. coupling 16 is opened and .closed for controlling the passage of carbu'reted' air to the engine.

he numeral 18 designates a sleeve, surrounding the nozzle 10 and screw-threaded into the coupling 16, as shown at 19. The sleeve 18 serves to deflect the upwardly as cending current of air in proximity to the nozzle 10. 1 The operation of the carbureter is as folows:

The loil or liquid fuel from the chamber 1 passes through the port 2 and upwardly through the space 9, discharging from the upper end thereof in proximity to the upper end of the air tube 6. 'Thesuctionfrom the cylinders draws the air upwardly through the tube 6 and as this air discharges from the upper end of the tube 6 it atomizes and takes up the liquid fuel discharging from the upper end of the passage 9. The

Patented Nov. 5, 1918.

of the engine,

air containing the more or less atomized liquid fuel passes about the deflector 11 through the passage 12 and is guided near the inner wall of the nozzle 10, to pass up wardly therein. This air, at the upper end of the nozzle 10 is deflected downwardly by the spherically curved portion, and travels inwardly of. the ascending portions of the The descending current at the top of the deflector 11 passes horizontally through the openings 14, and in so doing passes through the upwardly moving portion of the air. It is thus apparent that an intimate mixture of the atomized oil fected. The carbureted air passing through the opening 15 enters the sleeve 18, and becomes miXed with the ascending current of air, forming a charge which is fed to'the cylinders of the engine.

It is to be understood that the form of 'the same, and that various changes in the shape, size. and

arrangement of parts, may be resorted to,

without departing from the carried by the upper end spirit of my invention or the scope of the subjoined claims.

Having thus described my invention What I claim is:

1. In a carbureter of the character de-' scribed, a substantially vertical air supply tube. an outer tube surrounding the air supply tube in spaced relation to form an an nular passage therewith, means for supplying a liquid fuel into the passage, a nozzle of the outer tube and having its upper end closed and spherically curved and provided in its side with a plurality of transve se openings, and a deflector arranged within the lower portion of the nozzle with its upper end in proximity to the transverse openings.

In a carburetor of the character described, a substantially vertical air supply tube, an outer tube surrounding the air supply tube in spaced relation to nular passage therewith, means for supplying a liquid fuel into the passage, a nozzle carried by the upper end of the outer tube and having its upper and lower portions spherically curved, with the upper spherically curved portion ing transverse openings in its side arranged near the lower spherically curved portion thereof, a deflector arranged within the lower spherically curved portion of the nozzle beneath the transverse opening, and an air passage surrounding the nozzle.

In testimony whereof I have signed my name to this specification in the presence of 5 two subscribing witnesses.

\VILLIAM J AMES.

\Vitnesses:

SoMERVILLE GOODALL, PERCY I'IUBHARD.

form an anclosed, said nozzle hav- I 

